San Marcos Premium Outlets are offering a Simon Fun Pack that includes (2) tickets to Schlitterbahn Waterpark New Braunfels, a $10 Simon American Express Giftcard, and other summer goodies for just $85! The gift card is valid anywhere in the U.S. that American Express is accepted. This is being offered through 06/29/18. See details here.
A similar deal is also being offered at Ingram Park Mall.